I like the idea of being able to resume in place when I fall asleep while watching a movie. If enough people use it, Netflix can learn quite a bit about what where the plot line in a movie starts to sag enough that folks generally fall asleep. They maybe able to find the secret sauce for keeping story interesting and provoke binge watching like House of Cards does.
There is obviously a certain Scheherazade effect that is at work in a series like Cards.The Scheherazade effect refers to the possible tactics used by ancestral women to appeal to a man's conversational skills in order to keep them around.The medium is applying the same tactic on the viewer to keep them around.
What works well for a season's worth of episodes does not readily translate to a two hour movie but there may be things to learn from movies that make people fall asleep and those that do not.